Aldson robinson



H. J. D. ROBINSON DEMOUNTABLE RIM FOR AUTOMOBILE WHEELS Filed April 10 1922 l N VEN TOR 17.112 Buvs /v. Q

Patented Oct. 23, 1923.

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Get etails.

HARVEY JOHN DONALDSON ROBINSON". OE TROCE-IU, ALBERTA, CANELDA.

DEMOUNTABLE RID-'1 FGR .PiUTGhIOBILE WHEELS.

Application filed April 10, 1522.

To all whom it may concern:

Be it known that I, I'IARVEY dorm DUN- ALDSON RonINsoN. a resident of the village of Trochu, in the Province of Alberta, Canada. have invented certain new and useful Improvements in Demountable Rims for Automobile .Vheels, of which the following is the specification.

My invention relates to improvements in demountable rims for automobile wheels and the object 01" the invention is to devise a tire carrying rim which can be readily and quickly detached from the fell'oe of the wheel without the use 01" special tools.

A further object is to devise a tire carrying rim in which the tire can be readily applied thereto and detached therefrom, and a still further object is to devise a tire carrying rim which will not be liable to become rust-bound, as it is held away from contact with the felloe.

My invention consists of a demountable rim constructed and arranged all as hereinafter more particularly described and il lustrated in the accompanying drawing in which:

Fig. 1 represents a front elevation of a wheel of an automobile showing a rim constructed according to my invention applied thereto and the means of applying the same to the wheel.

Fig. 2 is a cross sectional view of the rim and part of the tire.

Fig. 3 is a section of the felloe of the wheel showing one of the rim carrying blocks attached thereto and a portion of the rim.

Fig. 4 is a sectional view through one of mydblocks showing the rim in dotted lines, an

Fig. 5 is an elevational view of the adjacent ends of the divided rim showing the means for sealing them together.

Like characters of reference indicate corresponding parts in the difierent views.

1 is the felloe of the wheel. 2, 2 are the opposed sections of the tire carrying rim being constructed with beads adapted to carry either the ordinary clincher tire or straight walled tire as the case may be. 3, 3 are the rim carrying blocks provided with inwardly extending spaced apart flanges 4.- and 5, said blocks adapted to straddle the felloe and to be secured thereto by means of the rivets or bolts.6 extending through the felloe and flanges 4 and 5.

Serial No. 551,138.

7 is a lateral flange provided on the inner side of the outer face of the block. said outer face of the block being preferably convened laterally to correspond with the curvature the inner face of the tire carrying rim to which it is applied. Each block is provided with an outwardly extending lateral flange 8 provided with an inwardly eftending slot 9 conimunicating with an orifice "i0 extending through the flange, said orifice being threaded for a portion of its length from its inner end.

11, 11 are inwardly extending radially disposed studs provided on the rim 2. The QIIL studs 12 of each section of the rim are semicircular in cross section and threaded on their faces so that when the adjacent ends of the rim sections are applied to one another, such end studs 12 will constitute a complete threaded stud.

13, 13 are nuts having rings 14 formed thereon, said nuts being threaded externally and also provided with threaded oriflees 15 extending therethrough, said studs 11 and 12 adapted to be threaded into such threaded orifices in the nuts 13 and said external. threads on the nuts threaded into the threaded portion of the orifice 10.

In applying the tire 16 to my tire carrying rim 1 apply one section of the rim to the tire and then apply the other section. 1 then thread the nuts 13 onto the adjacent studs 12, thus securing the sections together.

Where it is desired to carry the tire and rim as a spare, the nuts 13 will be screwed down onto the adjacent studs 12 to their limit.

hen it is desired to apply the tire carrying rim to the wheel it is merely necessary to slacken the nuts 13 on the studs 12 and to apply the tire carrying rim to the blocks 3 so that. the studs 11 and 12 register with the slots 9 in the flanges 8. The rim can now be pushed home onto the blocks until its inner face engages the flange 7. The nuts 13 are applied to the remaining studs 11 and screwed down until the exteriorly threaded portion of the nuts are threaded home into the threaded portion of the'orifices 10. In order to tighten the nuts in position the hanle of a screw driver or any other suitable tool may be inserted into the ring 14.

To remove the rim it is merely necessary to unscrew the nuts off the studs and to pull the rim from the blocks.

It will be noted being; inse'twi into blocks prevent any er; lively to the felloe.

From the above clescri ion it will be seen that I have devised simple and f e (iemountnble rim which will be simple construction. and. which can readily zip-- 10 wheels of ll EL ate the lire removed therefrom.

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inn, l l'l ear 'ying blocks fixedl iilie fol lei each of said i: s outwardly *rctenclmggflange W1 Werclly extending: slot communicating with a threaded orifice, and externally infernelly i'hiemlmji nuts threaded into ll eml onto the studs thremied lneiie 3. In automobile (lemounceble 1' e orifice ing rim, inwerdly extending; Blinds rim, encwez'dly run 1 to jlizieilii elloe, of ange on the in- 11 automobile ilen'ioiinmble rims, V eoin'oin u ion with live fellei, of e tile earl iny; yin, inwz '(lly extending studs 1; rim cnii'yiiy iflouin ii; .7

the felloe, each l saiiil blocks l'm, V hinge on he inner side o'l lite ll, k

1110 F11 li.i 'le0. iniy 5L 1 i I r nu w n. in. .'T y eluuiumg; llllhltliblf, (mime. i'lwemlml s'mi 9 oi each stuii (:LuQLl to lie au acent ends; of: "he run sections and nuts threaded. on the divided studs for securing; (hem iLOffli'llQl, tire cm" blocks fixedly cured to 1; e felloe, even of said. l' lflCliS llfl/vlnfi e lateral flange on the lie inner side of its rim engaging; face and t (:1 silly Xl811t'lliifIflfiI1QQ l T exlending slot COITllill'LlllK ing t11fe. iie(l orifice and externnlly unrl no lly threaded nuts Threaded into the eriiive i on the L smile inserted. klieeeinto. 

